Contact PTL

We welcome the opportunity to meet with you personally at our facility in Downers Grove, just west of Chicago.

Take a tour of our laboratory, including an overview of our instrumentation, and have an interactive discussion to address your unique particle characterization needs.
Directions, map, a local hotel flyer and our Visitor Safety Information Guide can be found here.

If you are interested in an in-person meeting, contact us using the button below.


On February 19, 2020 Commonwealth Edison is planning a power outage for our area. We are expecting to be without power between the hours of 8:00 am until 1:00 pm. 

Due to this outage, our phone system will not be working. While our phones are down, messages and quote requests can be sent online via our Email Us, and Quote Request forms.

We have modified our business hours for the day. Our office and laboratory will be open from 1:00 pm through 7:00 pm to ensure all work in process for our clients is completed on schedule.

We apologize for any inconvenience this may cause. ComEd has ensured us that they will be working as quickly as possible to complete this necessary electrical system maintenance in our area.  


555 Rogers Street, Downers Grove, IL 60515, United States

Phone Number

Sales & Support: (630) 969-2703